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When to Plant Chard in Avery County, NC

Avery County, North Carolina Zone 6b May

What to do in May

Each item below is timed to Avery County, North Carolina's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 12
Avg. first frost October 23
Soil temp (4") 65°F
Watering Low
Pest pressure Low
Daylight 13.9 hrs
  1. Start chard indoors

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

Looking ahead to June
  • First harvests: chard

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Swiss chard is a colorful, heat-tolerant green with large crinkled leaves and vibrant stalks in red, yellow, and white. Both the leaves and stems are edible and nutritious.

Avery County, North Carolina is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 23, giving you a growing season of approximately 194 days.

At an elevation of 914 feet, Avery County receives approximately 43.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Chard during the growing season. Clay soil retains moisture well for Chard, but amend with compost to improve drainage and prevent root rot.

Avery County, NC (Zone 6b) Moderate season
194 days
Last Spring Frost April 12
194 growing days
First Fall Frost October 23

Avery County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (91 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jun 1 – Jul 20
Recommended (50%) ✓ Fits season (89 days to spare)
Start indoors: Mar 8 Transplant: Apr 12 🍅 Harvest: Jun 7 – Jul 26
Safe Start (90%) ✓ Fits season (85 days to spare)
Start indoors: Mar 25 Transplant: Apr 29 🍅 Harvest: Jun 24 – Aug 12

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Avery County

How your county's soil matches Chard's growing requirements.

Soil pH

Your soil pH (5.3–6.2) is more acidic than Chard prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Avery County is excellent for Chard — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Chard.

How to Plant Chard

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Chard

4
successive plantings in your 194-day season

Sow every 5.7 weeks. Last sowing by Aug 24 to harvest before frost.

For a dedicated fall crop, sow by Aug 14.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Chard

Chard needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Chard Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 3.5" 3.6" 0" ✅ Rainfall sufficient
May 3.5" 4" 0" ✅ Rainfall sufficient
Jun 3.5" 4.4" 0" ✅ Rainfall sufficient
Jul 3.5" 4.1" 0" ✅ Rainfall sufficient
Aug 3.5" 3.7" 0" ✅ Rainfall sufficient
Sep 3.5" 3.2" 0.3" 💧 Light watering
Oct 3.5" 2.5" 1" 💧 Light watering
Nov 3.8" 0" ❄️ Dormant
Dec 3.2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Avery County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Chard Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Chard needs ~1,004 GDD — county provides 3,540 GDD Excellent fit

Chard Planting Timeline — Avery County, NC

Chard Planting Calendar

Activity When Date Range
Start Indoors March 8 Mar 8 – Mar 22
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow March 29 Mar 29 – Apr 19
Harvest June 7 Jun 7 – Jul 26
Fall Sowing August 14 Aug 14 – Aug 28

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May
June Harvest
July Harvest
August Fall Sowing
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6b

📆 Growing Season

194 days in Avery County

Growing Tips for Chard in Avery County

Direct sow Chard outdoors after April 12 in Avery County when soil has warmed and frost danger has passed.

With Avery County's clay soil (26% clay), work in 3-4 inches of compost before planting Chard. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Avery County reach 91°F — grow Chard as a spring or fall crop. Use shade cloth if planting in summer.

General growing tips

Direct sow or transplant after last frost. Harvest outer leaves regularly to encourage continuous production. Chard tolerates both heat and light frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Corn
  • Cucumbers

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chard in Avery County, NC?

Avery County is in Zone 6b with an average last frost of April 12. Plan your Chard planting based on this frost date — see the calendar above for exact timing.

What planting zone is Avery County, NC?

Avery County, North Carolina is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 23.

🌱

Your Avery County Garden Planner — Free

A 24-page printable planner built for Avery County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Avery County, NC. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.